Cheap flights from the United Kingdom to Belgium from £20

The month of September is, on average, the cheapest month to fly to Belgium from United Kingdom, with most prices found around £95. If you aren’t able to travel during the month of September, then book flights to Belgium from United Kingdom during October instead. Flights to Belgium in October, while not as cheap as those in September, still average around £96.

The cheapest day to depart from United Kingdom to Belgium is on a Friday when prices can be found for as low as £439. Be sure to avoid booking your departure on a Thursday as prices are generally higher than usual. According to our data, the average ticket price to Belgium on Thursday is £498.

Our most recent data shows that the best time of day to fly to Belgium is in the evening. Flights from United Kingdom to Belgium during this time can be as low as £127. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are £499 on average. Flights to Belgium from United Kingdom in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

Fly from Newcastle upon Tyne to Charleroi Brussels for the best United Kingdom - Belgium flight prices

You are more likely to see cheaper flights to Belgium from United Kingdom when booking weeks ahead of your departure date. In general, you can expect to find flights to Belgium for around £129 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Belgium from United Kingdom for as low as £105 on momondo.

There are 3 cabin classes available to choose from on United Kingdom to Belgium flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Ryanair, easyJet, and Vueling are the most popular carriers operating from United Kingdom to Belgium

Ryanair, Brussels Airlines and British Airways are the top three most popular airlines that fly to Belgium from United Kingdom according to our data. Ryanair is the first choice among our users, with 63% of people opting to fly with this airline when travelling to Belgium. Keep in mind that there are 5 different airlines that fly to Belgium on a routine basis, so you have a few additional options to choose from.

Historically, on average around 23% of flights between United Kingdom and Belgium have experienced a delay on any given week. The average delay length over the past 12 months has been 97 minutes.

Generally, flights departing at night tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

According to our data, British Airways have had the fewest delays on this route over the last 12 months, with about 17% of their flights experiencing any sort of delay.

19 flights are operational daily from United Kingdom to Belgium as of July 2026. The most popular departure time for this route is 06:00, with 68% of flights per day taking off at midday.

As of July 2026, 137 flights take off from United Kingdom and land in Belgium each week. The most common flight departure day for this route is Thu, with 24% of weekly flights taking off on this day.